Fi's cousin had been dating his girlfriend for the past four years; they lived together for most of that, and had been engaged for the past 18 months or so. Their wedding plans weren't advancing, however, because cousin is still in the processing of divorcing his ex-wife, even though they separated 7 years ago.
Three weeks ago, FI and I went to dinner with cousin and his FI. At one point, cousin's FI pulled me aside and told me she had moved out a month prior because cousin was dragging his feet on the divorce. She also mentioned she was continuing to take care of his kids, and was still receiving his paycheck (she was a kept woman; he has other income sources, so their deal was always she got his paycheck). Cousin's FI still had her ring on, and she and cousin acted as a couple.
Last week, cousin's FI changed her FB status to single, so I figured they were unable to reconcile their differences. However, we attended family functions on both Chrstimas Eve and Christmas Day, and saw cousin and his FI at both, acting as a couple. There are some family members who don't know she moved out or about her FB status change, and neither cousin nor his FI made any attempt to correct the presumption they were still together.
Our invites go out this weekend. Do I include cousin's FI on his invite? As I understand things, normally adults living separately would each get their own invitation, but if things were to go south between them in the next four weeks, I wouldn't want her to feel like she should attend because she received her own invite. We're friendly but not that close. However, I'd feel awkward putting +1 on cousin's invite; seems sort of impersonal, since cousin and his FI are acting like their relationship is still going strong.